There is a large number of cubes in a bag.

1 answer:

Alla [95]2 years ago

7 0

Marked(10)/total = 3/20 (from sample)

total/10 = 20/3 (inverting the above proportion)

total = 10•20/3 = 200/3 ≈ 67

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taurus [48]

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Alex777 [14]

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Greeley [361]

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